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Message-ID: <20210306204649.GA1177075@robh.at.kernel.org>
Date: Sat, 6 Mar 2021 13:46:49 -0700
From: Rob Herring <robh@...nel.org>
To: Irui Wang <irui.wang@...iatek.com>
Cc: Alexandre Courbot <acourbot@...omium.org>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
Tiffany Lin <tiffany.lin@...iatek.com>,
Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Tomasz Figa <tfiga@...gle.com>,
Hsin-Yi Wang <hsinyi@...omium.org>,
Maoguang Meng <maoguang.meng@...iatek.com>,
Longfei Wang <longfei.wang@...iatek.com>,
Yunfei Dong <yunfei.dong@...iatek.com>, yong.wu@...iatek.com,
linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
srv_heupstream@...iatek.com, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2,1/3] dt-bindings: media: mtk-vcodec: Separating mtk
vcodec encoder node
On Thu, Feb 25, 2021 at 03:36:01PM +0800, Irui Wang wrote:
> Updates binding document since the avc and vp8 hardware encoder in
> MT8173 are now separated. Separate "mediatek,mt8173-vcodec-enc" to
> "mediatek,mt8173-vcodec-enc-vp8" and "mediatek,mt8173-vcodec-enc".
This is not a compatible change. Please explain that here and why that's
okay (if it is).
>
> This is a preparing patch for smi cleaning up "mediatek,larb".
>
> Acked-by: Tiffany Lin <tiffany.lin@...iatek.com>
> Signed-off-by: Hsin-Yi Wang <hsinyi@...omium.org>
> Signed-off-by: Maoguang Meng <maoguang.meng@...iatek.com>
> Signed-off-by: Irui Wang <irui.wang@...iatek.com>
> ---
> Change since v1:
> - rename compatible and device node
> ---
> .../bindings/media/mediatek-vcodec.txt | 55 ++++++++++---------
> 1 file changed, 29 insertions(+), 26 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
> index 8217424fd4bd..03209cbd7540 100644
> --- a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
> +++ b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
> @@ -4,7 +4,9 @@ Mediatek Video Codec is the video codec hw present in Mediatek SoCs which
> supports high resolution encoding and decoding functionalities.
>
> Required properties:
> -- compatible : "mediatek,mt8173-vcodec-enc" for MT8173 encoder
> +- compatible : must be one of the following string:
> + "mediatek,mt8173-vcodec-enc-vp8" for mt8173 vp8 encoder.
> + "mediatek,mt8173-vcodec-enc" for mt8173 avc encoder.
> "mediatek,mt8183-vcodec-enc" for MT8183 encoder.
> "mediatek,mt8173-vcodec-dec" for MT8173 decoder.
> - reg : Physical base address of the video codec registers and length of
> @@ -13,10 +15,10 @@ Required properties:
> - mediatek,larb : must contain the local arbiters in the current Socs.
> - clocks : list of clock specifiers, corresponding to entries in
> the clock-names property.
> -- clock-names: encoder must contain "venc_sel_src", "venc_sel",,
> - "venc_lt_sel_src", "venc_lt_sel", decoder must contain "vcodecpll",
> - "univpll_d2", "clk_cci400_sel", "vdec_sel", "vdecpll", "vencpll",
> - "venc_lt_sel", "vdec_bus_clk_src".
> +- clock-names:
> + encoder must contain "venc_sel";
What happened to the other clocks?
Seems like you are dropping what are parent clocks? That seems unrelated
to the VP8 split? If so, that's a separate change.
> + decoder must contain "vcodecpll", "univpll_d2", "clk_cci400_sel",
> + "vdec_sel", "vdecpll", "vencpll", "venc_lt_sel", "vdec_bus_clk_src".
> - iommus : should point to the respective IOMMU block with master port as
> argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
> for details.
> @@ -80,14 +82,10 @@ vcodec_dec: vcodec@...00000 {
> assigned-clock-rates = <0>, <0>, <0>, <1482000000>, <800000000>;
> };
>
> - vcodec_enc: vcodec@...02000 {
> +vcodec_enc_avc: vcodec@...02000 {
> compatible = "mediatek,mt8173-vcodec-enc";
> - reg = <0 0x18002000 0 0x1000>, /*VENC_SYS*/
> - <0 0x19002000 0 0x1000>; /*VENC_LT_SYS*/
> - interrupts = <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>,
> - <GIC_SPI 202 IRQ_TYPE_LEVEL_LOW>;
> - mediatek,larb = <&larb3>,
> - <&larb5>;
> + reg = <0 0x18002000 0 0x1000>;
> + interrupts = <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
> iommus = <&iommu M4U_PORT_VENC_RCPU>,
> <&iommu M4U_PORT_VENC_REC>,
> <&iommu M4U_PORT_VENC_BSDMA>,
> @@ -98,8 +96,20 @@ vcodec_dec: vcodec@...00000 {
> <&iommu M4U_PORT_VENC_REF_LUMA>,
> <&iommu M4U_PORT_VENC_REF_CHROMA>,
> <&iommu M4U_PORT_VENC_NBM_RDMA>,
> - <&iommu M4U_PORT_VENC_NBM_WDMA>,
> - <&iommu M4U_PORT_VENC_RCPU_SET2>,
> + <&iommu M4U_PORT_VENC_NBM_WDMA>;
> + mediatek,larb = <&larb3>;
> + mediatek,vpu = <&vpu>;
> + clocks = <&topckgen CLK_TOP_VENC_SEL>;
> + clock-names = "venc_sel";
> + assigned-clocks = <&topckgen CLK_TOP_VENC_SEL>;
> + assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL>;
> + };
> +
> +vcodec_enc_vp8: vcodec@...02000 {
> + compatible = "mediatek,mt8173-vcodec-enc-vp8";
> + reg = <0 0x19002000 0 0x1000>; /* VENC_LT_SYS */
> + interrupts = <GIC_SPI 202 IRQ_TYPE_LEVEL_LOW>;
> + iommus = <&iommu M4U_PORT_VENC_RCPU_SET2>,
> <&iommu M4U_PORT_VENC_REC_FRM_SET2>,
> <&iommu M4U_PORT_VENC_BSDMA_SET2>,
> <&iommu M4U_PORT_VENC_SV_COMA_SET2>,
> @@ -108,17 +118,10 @@ vcodec_dec: vcodec@...00000 {
> <&iommu M4U_PORT_VENC_CUR_CHROMA_SET2>,
> <&iommu M4U_PORT_VENC_REF_LUMA_SET2>,
> <&iommu M4U_PORT_VENC_REC_CHROMA_SET2>;
> + mediatek,larb = <&larb5>;
> mediatek,vpu = <&vpu>;
> - clocks = <&topckgen CLK_TOP_VENCPLL_D2>,
> - <&topckgen CLK_TOP_VENC_SEL>,
> - <&topckgen CLK_TOP_UNIVPLL1_D2>,
> - <&topckgen CLK_TOP_VENC_LT_SEL>;
> - clock-names = "venc_sel_src",
> - "venc_sel",
> - "venc_lt_sel_src",
> - "venc_lt_sel";
> - assigned-clocks = <&topckgen CLK_TOP_VENC_SEL>,
> - <&topckgen CLK_TOP_VENC_LT_SEL>;
> - assigned-clock-parents = <&topckgen CLK_TOP_VENCPLL_D2>,
> - <&topckgen CLK_TOP_UNIVPLL1_D2>;
> + clocks = <&topckgen CLK_TOP_VENC_LT_SEL>;
> + clock-names = "venc_lt_sel";
> + assigned-clocks = <&topckgen CLK_TOP_VENC_LT_SEL>;
> + assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL_370P5>;
> };
> --
> 2.25.1
>
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